US9395800B2 - Enabling instant handwritten input on mobile computing devices - Google Patents
Enabling instant handwritten input on mobile computing devices Download PDFInfo
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- US9395800B2 US9395800B2 US13/250,811 US201113250811A US9395800B2 US 9395800 B2 US9395800 B2 US 9395800B2 US 201113250811 A US201113250811 A US 201113250811A US 9395800 B2 US9395800 B2 US 9395800B2
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- writing tool
- handwritten input
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/325—Power saving in peripheral device
- G06F1/3262—Power saving in digitizer or tablet
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03545—Pens or stylus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04886—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
Definitions
- stylus input systems provide a natural user interface for computing systems by enabling a specific point on a touch-enabled display screen to be selected or identified when the user physically touches the display with a pen-like device or stylus.
- current pen solutions require the portable electronic device to be in a powered or active state and running a particular application for accepting pen-based input.
- such input is most effective if a user can immediately write on the surface in a similar fashion to writing on a paper notebook.
- FIG. 1 is a three-dimensional perspective view of a mobile computing device configured to detect an activation event using a writing tool according to an example of the present invention.
- FIGS. 2A and 2B are three-dimensional perspective views of a mobile computing device configured to detect various activation events according to examples of the present invention.
- FIGS. 3A and 3B are front views of a mobile computing device having a sensing detection element formed thereon according to examples of the present invention.
- FIG. 4 is a sample illustration of a mobile computing device accepting handwritten input while in a low power state according to an example of the present invention.
- FIG. 5 is a simplified flow chart of the processing steps for implementing instant handwritten input on a mobile computing device using a writing tool according to an example of the present invention.
- Voice memos are one solution, but voice input is not as powerful or as flexible as written input as it is sequential (i.e., linear) and transient (i.e., cannot be edited easily, such as deleting a section), which is a disadvantage when compared to handwritten notes.
- the conventional process for enabling a user to write notes on a portable electronic device includes the following steps: (1) user manually turning on the device, (2) unlocking the device from a locked state (e.g., password-protected), (3) opening a note-taking or similar application, (4) opening a keyboard (virtual or physical), and (5) entering or typing the notation into the application. Thereafter, the user must save the data and turn off the device.
- steps are not optimal when the user is “on the go” and must rely on quick note-taking. For instance, if the user is walking to their car, then the number of steps required to jot down notes on their mobile device become prohibitive and makes quick note-taking impractical.
- the password or identity-protected mode prevents accidental usage of the mobile device by locking device access until a pin code or gestural swipe is used to unlock the phone.
- a device unlock action is unnecessary.
- the referenced use case scenario of rapid note taking does not involve harmful false input such as mistakenly dialing a phone number or viewing/reading secure email.
- Examples of the present invention provide a method and system for instant handwritten input on mobile computing devices.
- a combination of sensors or similar elements are utilized to wake up the mobile device upon detection of an activation event, and software allows the mobile device to immediately capture handwritten input from an operating user via a pen stylus. That is, the configuration of the present examples enable handwritten input on a mobile device while maintaining the device in an identity-protected mode so as to allow a more functional and natural use of pen input in a mobile environment.
- FIG. 1 is a three-dimensional perspective view of a mobile computing device configured to detect an activation event using a writing tool according to an example of the present invention.
- the mobile computing device 110 includes a processing unit 114 and multiple touch sensor areas 112 a and 112 b positioned on an outer periphery of a display surface 111 .
- FIG. 1A depicts the touch sensing areas 112 a and 112 b near a corner and lower region respectively, the touch sensing areas may be positioned anywhere along the surface of the mobile computing device 110 .
- the touch sensor areas 112 a and 112 b may comprise of receiver coils configured to form a magnetic field with another device for facilitating transition of the mobile device from a sleep mode to a low power mode.
- the mobile computing device 110 enters a sleep or inactive state/mode when not it in use in order to conserve power. While in an inactive state the mobile computing device is unable to process complex user input. This is because the processing unit or integrated circuit that processes complex data is unpowered since considerable power (e.g., several hundred millwatts) is required to accept input across the entire display surface 111 .
- a proximity sensing element 108 such as a radio frequency (RF) or near-field communication (NFC) transmitting coil is placed near a front portion 107 (opposite back portion 109 ) of the pen stylus or writing tool 105 .
- RF radio frequency
- NFC near-field communication
- a magnetic field is formed so as trigger an activation event and cause the mobile device to switch from an inactive state to a low power state.
- a lower power state represents a processing mode in which the mobile computing device 110 and processing unit 114 are not fully powered (display 111 is powered), but may accept handwritten user input while remaining in a secure and identity-protected state.
- FIGS. 2A and 2B are three-dimensional perspective views of a mobile computing device configured to detect various activation events according to an example of the present invention.
- FIG. 2A depicts an activation event caused by an operating user removing the pen stylus from a storage housing within the mobile device.
- the trigger to switch the device 210 from an inactive state to a lower power state may arise when the writing tool 205 is removed from an internal storage area 213 of the mobile device 210 .
- Detection of this removal action i.e., pen stylus 205 from storage area 213
- the sensing element 216 is activated and sends out a signal that causes the processing unit to switch the mobile computing device 210 from an inactive state to a low power state.
- FIG. 2B depicts yet another activation event in which the writing tool transmits wireless communication signals to the mobile device.
- an activation button or switch 209 may be incorporated on the writing tool 205 .
- button 209 is utilized to send a wireless signal 226 to the mobile device 210 .
- this button 209 may be positioned on an upper location of the pen stylus 205 so as to be conveniently accessible by the user 202 .
- wireless communication via signal 226 may be accomplished using infrared, Bluetooth or any other short-range wireless communication protocol that is detectable by the mobile device while in a lower power state. If signal 226 is received by the mobile device while in an inactive state, receipt of the signal 226 will serve to awaken the mobile device from the sleep state and enter a low power or powered state in accordance with examples of the present invention.
- FIGS. 3A and 3B are front views of a mobile computing device having a sensing detection element formed thereon according to an example of the present invention.
- the mobile computing device 310 may incorporate a sensing detection element coplanar with the display surface 311 .
- the detection element may operate on its own polling cycle and instead of compromising significant processing power in testing for every sensing element associated with the writing tool, the sensing element may focus on a single activation event thus consuming significantly less processing power.
- the sensing detection element can be drawn as a single line region 315 across the display surface 311 .
- the sensing element region 315 may involve a more complex pattern so as to cover a larger area of the display surface 311 as shown in FIG. 3B .
- a physical touch and movement of the writing tool 305 at any point along the sensing detection regions 315 would serve to wake up the processing unit and switch the mobile computing device 310 from an inactive state (i.e., sleep mode) to either a lower power state or an unlocked state in accordance with an example of the present invention.
- FIG. 4 is a sample illustration of a mobile computing device accepting handwritten input while in a lower power state according to an example of the present invention.
- the mobile computing device 410 is switched from an inactive state to a lower power state.
- the mobile computing device 410 displays a first user interface 422 and a second user interface 432 .
- the first user interface 422 is configured to accept handwriting input from a writing tool 405 held by an operating user. Consequently, handwritten input 424 may be inscribed on the mobile computing device 410 within the first user interface 422 .
- the second user interface 432 is configured to accept input from the operating user in order to verify the identity of the user so as to place the device 410 in an unlocked state.
- the handwritten input 424 within the first user interface 422 is simply stored and not processed by the mobile device 410 .
- the user may access the handwritten input 424 at a later time and then convert the information into a document, contact, calendar event, task, phone call, or similar application event.
- handwritten input 424 may be used as biometric information for identity confirmation so as to unlock the mobile computing device 410 .
- the processing unit of the mobile device 410 analyzes the user's writing style and automatically unlocks the screen upon verification.
- FIG. 5 is a simplified flow chart of the processing steps for implementing instant handwritten input on a mobile computing device using a writing tool according to an example of the present invention.
- the device is placed in an inactive state and identity-protected so as securely lock the mobile device and prevent accidental touches on a display surface thereof.
- the processing unit detects an activation event triggered by an operating user.
- the activation event may include, but is not limited to, any of the following actions: physical or near contact of the writing tool on a touch sensing area of the mobile device, removal of the writing tool from an integrated storage area of the mobile device, depression of an activation button on the writing tool so as to send a wireless signal to mobile device, or movement of the writing tool along a sensing detection region on the display surface.
- the processing unit Upon detection of the activation event, in step 506 , the processing unit causes the mobile computing device to switch from a sleep mode or inactive state to a lower power state. If an unlock password or gesture is not entered by the user in step 508 , then the handwritten input is stored locally on the device for later access once the mobile device is unlocked. On the other hand, if a password, gesture, biometric information, or any other identity information is entered by the operating user, then the mobile computing device is switched from a low power state to a fully-powered and functional active state in step 512 .
- Embodiments of the present invention provide a method and system for providing instant handwritten input on a mobile computing device. Moreover, several advantages are afforded by the solution described in the examples of the present invention. For instance, one example embodiment allows a user to jot down a note immediately by simply removing a pen stylus from the device and start writing on the associated display screen. Such action bypasses at least three steps required of prior solutions, namely turning on the device, unlocking the device, and opening a particular application for receiving the handwritten input. Moreover, examples of the present invention allow a user to accomplish instant handwriting input in a natural and efficient manner while conserving precious battery life of the mobile device.
- the mobile computing device may be a netbook, smartphone, cell phone, or any other portable electronic device having a touch-enabled display.
- the writing tool may be formed in any shape or size conducive to handwriting input by an operating user rather than the pen-shaped device depicted in the present examples.
- the writing tool may be the size and shape of a highlighter, crayon, pencil, brush, or similar writing utensil.
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US13/250,811 US9395800B2 (en) | 2011-09-30 | 2011-09-30 | Enabling instant handwritten input on mobile computing devices |
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US13/250,811 US9395800B2 (en) | 2011-09-30 | 2011-09-30 | Enabling instant handwritten input on mobile computing devices |
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US20130082937A1 US20130082937A1 (en) | 2013-04-04 |
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